D131333132213233313233313131133132333132313223313232233131333132333321   >>    D13133313221323331323331313113313233313231322331323223313133313233332   <<    D131333132213233313233313131133132333132313223313232233131333132333323   >>      D131333132213233313233313131133132333132313223313232233131333132333322   >>